Interesting idea with the bones! Nice!
But yes, this all sounds lovely, fishies in the water please, we can fish them, keep them in separate little areas, etc.
Oh, oh, oh! Just had a nice idea! One of the fish we can keep in a pond and farm them is a really, really fast one which is hard to catch but once you have a bunch of them in an enclosed little pond they reproduce like maniacs and once they die they drop… wait for it… adrenal glands! (or something else that can be used instead of adrenal glands, perhaps their eggs can so we need to decide to use the eggs to create more fish or use them up in a recipe for fast brews!)
And growing kelp and other water plants sounds very good too! Reactive lamellas could be grown like that!!
We also still need to grow beans somehow tho…